# ValueError: Continuous variable operations and observables are not supported

**URL:** <https://discuss.pennylane.ai/t/valueerror-continuous-variable-operations-and-observables-are-not-supported/5113>\
**Category:** PennyLane Help\
**Created:** [August 31, 2024, 3:39pm UTC](https://discuss.pennylane.ai/t/valueerror-continuous-variable-operations-and-observables-are-not-supported/5113 "2024-08-31T15:39:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![CatalinaAlbornoz](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/catalinaalbornoz/32/1196_2.png) [@CatalinaAlbornoz](https://discuss.pennylane.ai/u/CatalinaAlbornoz)\
**Post date:** [September 6, 2024, 12:43am UTC](https://discuss.pennylane.ai/t/valueerror-continuous-variable-operations-and-observables-are-not-supported/5113/2 "2024-09-06T00:43:13Z")

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Hi @RX1 ,

Unfortunately, as the error says, continuous variable operations are not supported with mid-circuit measurements. Is there a reason why you need to use continuous variable operations? I would generally recommend using either [PennyLane](https://pennylane.ai) for gate-based computations or [MrMustard](https://mrmustard.readthedocs.io/en/latest/) for continuous-variable simulations. However note that they’re not compatible with each other and MrMustard has a completely different syntax.

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_[View the full topic](https://discuss.pennylane.ai/t/valueerror-continuous-variable-operations-and-observables-are-not-supported/5113)._